Modular fan housing with multiple modular units having sound attenuation for a fan array for an air-handling system

A fan system configured for use in an air-handling system to deliver air to a ventilation system for at least a portion of a building, the fan system comprising:

• an air handling compartment that includes chambers arranged adjacent to one another in at least one row or column, the air handling compartment having a discharge plenum configured to deliver air to a ventilation system for at least a portion of the building, the chambers having corresponding front and back ends;
• motors and fans positioned in the chambers, the fans being located to take in air from the front ends of the corresponding chambers and to discharge the air from the back ends of the corresponding chambers;
• and
• sound attenuation layers that extend along at least a portion of the corresponding chambers such that the sound attenuation layers are positioned between at least some of the fans that are adjacent to one another in the corresponding chambers, the chambers opening at the back ends into the discharge plenum where the air mixes to provide substantially uniform airflow for the air-handling system.

A fan system configured for use in an air-handling system to deliver air to a ventilation system for at least a portion of a building, the fan system comprising:

• an air handling compartment that includes chambers arranged adjacent to one another in at least one row or column, the air handling compartment having a discharge plenum configured to deliver air to a ventilation system for at least a portion of the building, the chambers having corresponding front and back ends;
• motors and fans positioned in the chambers, the fans located to take in air from the front ends of the corresponding chambers and to discharge the air from the back ends of the corresponding chambers, wherein the motors have a corresponding first speed when driven at a first frequency, the fans being configured to deliver an air flow amount based on a speed of the corresponding motor;
• sound attenuation layers that extend along at least a portion of the corresponding chambers such that the sound attenuation layers are positioned between at least some of the fans that are adjacent to one another;
• and
• an array controller for controlling said motors, the array controller configured to operate at least one of the motors at a speed that is greater than the first speed to deliver an associated air flow amount from the corresponding one of the fans.

A method for providing a fan system configured for use in an air-handling system to deliver air to a ventilation system for at least a portion of a building, the method comprising:

• providing an air handling compartment that includes chambers arranged adjacent to one another in at least one row or column, the air handling compartment having a discharge plenum configured to deliver air to a ventilation system for at least a portion of the building, the chambers having corresponding front and back ends;
• positioning motors and fans in the chambers, the fans being located to take in air from the front ends of the corresponding chambers and to discharge the air from the back ends of the corresponding chambers;
• and
• including, in at least a portion of the chambers, sound attenuation layers along at least a portion of the corresponding chambers such that the sound attenuation layers are positioned between at least some of the fans that are adjacent to one another in the corresponding chambers, the chambers open at the back ends into the discharge plenum where the air mixes to provide substantially uniform airflow for the air-handling system.

A method for providing a fan system configured for use in an air-handling system to deliver air to a ventilation system for at least a portion of a building, the method comprising:

• providing an air handling compartment that includes chambers arranged adjacent to one another in at least one row or column, the air handling compartment having a discharge plenum configured to deliver air to a ventilation system for at least a portion of the building, the chambers having corresponding front and back ends;
• positioning motors and fans in the chambers, the fans being located to take in air from the front ends of the corresponding chambers and to discharge the air from the back ends of the corresponding chambers, wherein the motors have a corresponding first speed when driven at a first frequency, the fans being configured to deliver an air flow amount based on a speed of the corresponding motor;
• and
• including, in at least a portion of the chambers, sound attenuation layers along at least a portion of the corresponding chambers such that the sound attenuation layers are positioned between at least some of the fans that are adjacent to one another in the corresponding chambers;
• and
• configuring an array controller to operate at least one of the motors at a speed that is greater than the first speed to deliver an associated air flow amount from the corresponding one of the fans.